Bosch LW 30 E Manual Del Usario página 15

8.2 Testing the supply transformer
8.2
Disconnect the mains plug
: Disconnect edge
connector X12
Connect the charger to the
mains via the isolating
transformer
Set mains switch to "I"
:
Mains voltage on supply
no
transformer
?
yes
:
Terminals 13/14
no
approx. 12 V
?
yes
Set mains switch to "0"
Disconnect the mains plug
Plug on the edge
connector X12
8.3
English
Test and, if necessary,
exchange the supply leads
to the supply transformer
Set mains switch to "0"
Disconnect the mains plug
Clearly identify and
disconnect the supply
transformer's connection
leads
Exchange the supply
transformer
Connect the connection
leads as marked
Plug on the edge
connector X12
9
8.3 Testing the main transformer
8.3
Disconnect the mains plug
Reconnect the primary
terminals of the main
transformer on terminal
strip X10 ():
2 to 8 / 1 to 7
Connect the charger to the
mains via the isolating
transformer
Set mains switch to "I"
: Mains
voltage on the main
no
transformer
?
yes
Set mains switch to "0"
Disconnect the mains plug
Desolder and remove one
secondary lead of the
main transformer from the
rectifier ()
Connect the charger to the
mains via the isolating
transformer
Set mains switch to "I"
: Secondary
voltage terminals 3/4
no
approx. 17 V ?
yes
Set mains switch to "0"
Disconnect the mains plug
Connect and solder on the
secondary lead of the
main transformer on the
rectifier ()
Reconnect the primary
terminals of the main
transformer on terminal
strip X10 () as shown in
the circuit diagram:
2 to 2 / 1 to 1
8.4
15
Avoid short circuits !
Test and, if necessary,
exchange the supply leads
to the main transformer
Set mains switch to "0"
Disconnect the mains plug
Clearly identify and
disconnect the connection
leads of the main
transformer
Exchange the main
transformer
Connect the connection
leads as marked
Reconnect the primary
terminals of the main
transformer on terminal
strip X10 () as shown on
the circuit diagram:
2 to 2 / 1 to 1
9